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If n (A) =3 ,n(B)=6 and A sube B .Then ...

If n (A) =3 ,n(B)=6 and `A sube B` .Then the number of elements in `A cup B` is equal to

A

3

B

6

C

9

D

18

Text Solution

Verified by Experts

The correct Answer is:
B
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